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<p>Hi Byron:</p>
<p>If I understand this correctly, you are concerned with how the
contours will be generated at the edge of your raster data. If I
have this correct, I would grid the data that you have based on
the attribute you want to contour. <br>
</p>
<p>Create a vector clip layer for your study area that is at least 1
grid cell smaller than the the boundary size of the original
vector data. <br>
</p>
<p>Then create the contours from this new raster and you should be
good to go.</p>
<p>Kirk Schmidt<br>
</p>
<div class="moz-cite-prefix">On 5/2/2024 2:07 PM, Byron Veilleux via
QGIS-User wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAAyYZQLxKoAr2Z01TPdc0DeufTiix=e_v__q_mizj8XyEn_Mwg@mail.gmail.com">
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<div>i have a large geologic dataset that i want to grid and
contour.</div>
<div>There is an irregular zero edge that bounds these data on
one side and</div>
<div>a straight bounding area edge on the other sides. If i
create an irregular polygon that encloses these data, is there
a way to grid and contour such that these data are truncated
against the polygon and do not extend beyond?</div>
<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">Byron Veilleux, MSc. P.Geo
<div>Conjugate Geologic Services Limited</div>
<div>Calgary, Alberta Canada</div>
<div><a href="mailto:byron@conjugategeo.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">byron@conjugategeo.com</a></div>
<div>Cell:4037108414</div>
</div>
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<br>
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<pre class="moz-signature" cols="72">--
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
26 Church Road
Sutherlands River, NS
B0K 1W0
Tel (902) 922.3607
Email: <a class="moz-txt-link-abbreviated" href="mailto:kirk@nortekresources.com">kirk@nortekresources.com</a>
Web: <a class="moz-txt-link-abbreviated" href="http://www.nortekresources.com">www.nortekresources.com</a></pre>
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